Improvement in steam-engine valves



ill

-me me.

JOSEPH D. MOON ANDJOHN T.l FOSTER, OF JERSEY CITY, NEW

JERSEY.

Letters Patent No. 94,231, dated August 31,1869.

IMPROVEMENT IN STEAM-ENGINE VALVES.

The Schedule referred to in these Letters Ptent and making part f the same.

To all whom fit may concern.-

Beit known that we, JOSEPH D. MOON and J oHN '1. FOSTER, both of the city of New Jersey, State of New Jersey, have invented a. new and improved Valve for Pumps and Engines; 'and we hereby declare that the following is afull and clear description of the same, reference being had to the accompanying drawings end letters of reference marked thereon, making par of this specication.

Like letters refer to like parts in cach figure.

Figures 1 and 2 are end views. i y

Eig. 1 represents they inet( llic vatve K tlirown open, its shank B is cle-sped by the valvefned C, similar to the formation of a. but-hinge, except that the clasppmt of C forms a. guard to prevent the valve A from opening further than is desired.

d is :t piece of guttwpercha. of properdiameter, to ill the cylindrical valve A, and forms tu packing, by which the valve-opening h is made tight.

Owing to the projecting part of d being less than half its diameter', it is retained iny proper position while in operation.

gine-cylinder in proper position, so that the valve Ar will have the aid of gravity in closng.

NVhnt we claim, is- The pecking (1,01' its equivalent, in comhinntion with the hinge-joint, constructed und operating suhstztntiztlly :is herein set forth. l

JOS. D. MOON.

J. T. FOSTER.

Witnesses:

S. BRINKERHOFF, CHAs. E. WEST. 

